yesterday in tribute firefighters from as far away as new york city lined the street outside the catholic church in newtown, forming an honor guard as the hearse carrying daniel's body passed. firemen in full gear and uniforms saluted the little boy, recognizing the young child who hoped to join their ranks one day. another photo shows a man riding in the funeral procession holding a piece of paper out the window with the simple message, thank you all. look at that. well, at the same time, investigators continue pursuing their research, and today are going after a new angle in the search for a motive in this massacre. i mean, they just want to understand so they can prevent other tragedies in the future. experts are asking a yes nettist from the university of connecticut to contribute now to the investigation of the shooter in the hope that lanza's biology can reveal what may have been behind this massacre. dr. michael baden is a world renowned forensic pathologist, the best, and a fox news contributor who has worked so many high profile cases, we can barely name them all, there was the o